Sectional boat



Oct. 2, 1951 J. H. JENKINS v SECTIONAL. BOAT Filed July 8, 1947 4Sheets-Sheet 1 woe/am .1. H. JENKINS I SECTIONAL BOAT Oct. 2:, 1951 4Sheets-Sheet 2 Filed July 8, 194'? III/III I I III/[III 1951 J. H.JENKINS I ,569,611

' SECTIONAL BOAT Filed July 8, 1947 4 Sheets-Sheet :5

I1E.E. 55

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4 Sheets-Sheet 4 Filed July 8, 1947 J. H. JENK/Mi Patented Oct. 2, 1951,UNITED STATES PATENT OFFICE SECTIONAL BOAT Joe H. Jenkins, Henning,Tenn. Application July 8, 1947, Serial No. 759,529

18' Claims. 1

This invention relates to sectional boats.

An important object in the'invention is to provide a novel boatconstruction formed of a number of sections which are separable tofacilitate transportation of the boat and which are readily capable ofassembly into a rigid unit forming a boat of any desired shape.

A further object is to provide such a boat construction wherein novelleak-preventing means is provided between all of the separable sections,

thus rendering the boat completely water-tight when inuse. 1

' A further object is to provide novel means for effectively locking theseveralsections in proper positions relative to each other;

A further object is to provide novel deformable leak-preventing meansbetween the several boatsections together with means for latching thesections in proper relative positions, and to provide novel manuallyoperable means for bringing the sections into tightly clamped relationfor the latching operation and to properly eflect the deforming of theleak-preventing means so that the latching means will hold theleak-preventing means under substantial pressure to prevent leakage.

Other objects and advantages of the invention will become apparentduring the course of the following description.

In the drawings I have shown one embodiment of the invention. In thisshowing:

' Figure 1 is a side elevation of a complete boat of canoe shapeconstructed in accordance with the invention,

Figure 2 is a plan view of the same,

Figure 3 is an enlarged detailed fragmentary sectional view on line 3-3of Figure 2,

Figure 4 is a sectional view, still further en- I larged, takensubstantially on line 4-4 of Figure 3, 1

' Figure 5 is a fragmentary detailed perspective view of one of thelatches and its associated operating means, the parts being' shownseparated from their normal positions,

Figure 6 is an inside face view of one of the bow sections of the boatand a portion of one of the next adjacent sections, shown separated,

Figure 7 is a fragmentary perspective View of several associated boatsections, shown somewhat separated,

Figure 8 is a section on anenlarged scale taken substantially on line 88of Figure 6 showing the position of the parts assembled,

Figure 9 is a similar view on line 9-9 of Figure 2, and,

Figure 10 is a detailed perspective view of a substitute stern sectionor transom used when an outboard motor is to be employed with thestructure.

Referring to the drawings, the numeral l0 designates the boat as a wholeshown in Figures 1 and 2 as being the canoe type and having duplicatedbow sections H each of which is made up of two half-sections 12 to bereferred to more in detail later. The body of the boat is made of aplurality of sections 13 which are substantial duplicates of each otherand vary only in that the sections adjacent the bow sections areslightly curved so that the outer surfaces of these two sections will beflush, as. indicated in Figures 1 and 2. Each of the body sections isformed of a pair of half sections [4.

If desired, the boat may be provided with buoyancy-increasing pontoonswhich also tend to minimize the danger of capsizing. In the presentinstance, th pontoons have been illustrated as elongated elements 11(Figures 1, 2 and 7) of any desired internal construction and eachprovided on its inner face with spring clips l8 engageable in preferablysheet metal sockets I9 secured to the outer surfaces of the sections [3adjacent the top thereof. The pontoons I! of the sections 13 adjacentthe bow sections may be curved inwardly as in Figure 2 and upwardlytoward their extremities as in Figure 1.

Except as specifically referred to below, the same means is preferablyemployed for securing the various sections and half-sections to eachother; Referring to Figures 3 and 4, it will be noted that the hullportions of the sections and half-sections are preferably formed ofsheet metal, and the body portion of each section is flush with that ofthe next adjacent section in each instance, as clearly shown in detailin Figure 4. The metal forming the hull portions of this section isextended upwardly to form relatively deep flanges 22 and 23. Theseflanges are substantialy identical except that one of them, for example,the flange 22, is bent to provide a socket 24 having tapered sides 25for engagement with the corresponding faces of a deformable packingmember 26 the opposite edge of which is seated in and secured to asocket 21 formed in the other flange, for example the flange 23. One ofthe deformable packing members 26 is arranged between the adjacentcontacting portions of each section and half-section to form aleak-proof joint as further described below.

The flanges 22 and 23 extend upwardly to an extent greatly enlarged inFigure 4 and terminating at their upper edges in out-turned flanges 28each of which is welded or otherwise secured to a casing section 29which curves outwardly and downwardly in Figure 4 and then outwardly tobe welded at its extremity to a strip 38 similarly or otherwise suitablyfixed to the hull portion of the corresponding boat section. The casingsections 29 combine to form housing means for a mechanism to be referredto later. These casing sections are shown approximately in their trueproportions in Figure 7, and while these casing sections have beenspecifically defined with respect to the joint occurring in the plane ofseparation in opposite sides of the boat, similar casing sections areformed with respect to all of the abutting joints of all of the boatsections as will become more apparent below.

One of the flanges in Figure 4, for example the flange 22, is providedwith a bracket 34 welded to the flange and provided with a preferablyintegral socket 35 in which is slidably arranged to the adjacent end ofa latch bolt 36 slightly spaced from the head 31 of the socket 35 whenthe parts are assembled. The latch bolt 36 carries a shank 38 having itsouter end threaded in a nut 39, and a compression spring 48 is arrangedbetween the head 31 and nut 39 to urge the bolt 36 toward the right asviewed in Figure 4.

The other flange, namely the flange 23, is provided with a bracket 44having outstanding arms 45 forming bearings for a shaft 46 the operationof which will be described below. The bracket 44 further includes asocket 48 in which the projecting end of the bolt 36 extends. It ispreferred that the members 35 and 48 be out-of-round, for exampleelliptical with the bolt '36 similarly shaped, as shown in Figure 3.This is for'the purpose of preventing rotation of the bolt 36 for areason which will become apparent.

The shaft 46 carries a crank finger 59 engageable with the straight endwall of a notch formed in the bolt 36. Rotation of the shaft 46, asfurther described below, tends to force the bolt 36 to a latch position.

The bolt 36 is further provided with a latching notch 52 engageable byone arm 53 of a bell crank lever 54 the other end of which is preferablytwisted as at 55 (Figure 3) for a purpose to be described. Th bell cranklever 54 is pivoted as at 56 to an arm 51 preferably formed integralwith the socket 48.

The socket 48 is provided with an upstanding bracket 60 in the verticalplane of the latch 36. A compression spring 6! is arranged between theupper end of the bracket 68 and'the lever arm 53 to urge the latterdownwardly. Obviously, the socket 48 is apertured for the extensiontherethrough of the crank 59 and arm 53. The aperture 62 for the crank50 is elongated to permit reasonable swinging movement thereof about theaxis of the shaft 46. The aperture 63 for the lever arm 53 relativelysnugly fits such arm to prevent lateral movement thereof, that is,movement longitudinally of the bolt 36.

One of the complete operating units shown in Figure 4 has been describedabove, and it will be apparent that any number of these units will beemployed as determined by the length of the separable body sections. Forexample, in the sections shown in Figures 1 and 2, it usually will befound advisable to employ three operating units for each transverssection of the boat, two such units being shown in Figure 3. As shown inFigure 3, the housing defined by the casing members 29 is provided withan end wall 68 carrying bearings 69 in which the shaft 46 is rotatable.This shaft carries'an operating crank projecting through a suitable slot1| in the corresponding casing section 29, this slot obviously beingelongated in a plane perpendicular to the axis of the shaft 46.Accordingly the handle 10 is adapted to be swung to rock the shaft 46for its intended purpose described below.

Along the longitudinal axis of the boat the hull portions are bentupwardly to form the flanges 22 and 23, previously described. The hullportions at the ends of the sections are similarly bent upwardly, andthus are formed the walls 68 forming the ends of the housing asdescribed above in Figure 3. Connected to such flanges or walls 68 arecasing sections 15 shown in elevation in Figure 3 and identical in crosssection with the casing sections 29. The only difference between theseelements is the fact that the casing sections 29 are straight from endto end (Figures 7 and 8) while the walls 68 and casing sections 15follow the transverse contour of the boat as shown in the same figures.

The casing sections 15 house the same operating mechanism as thatdescribed above and shown in Figures 3 and 4 except that in place of therigid shaft 46 for rocking the crank fingers 50, a flexible shaft 16 isemployed for each boat section l4. However, the shaft 16 is operated inthe same manner as the shaft 46 by one of the cranks 18.

The mechanism shown in Figures 3 and 4 is applicable as described foreach of the boat sections l4. For the bow sections l2, casing sections88 are formed with their inner ends in alignment with the casingsections 29 and curve upwardly and inwardly to follow the bow contour asshown in Figures 6 and 9. Similarly, flanges 8|, corresponding to theflanges 22 and 23, are formed on the hull portions of the bow sections[2 and follow the contour of the casing sections 80. The mechanism forsecuring the half-sections of each bow section 12 to each other areidentical with the mechanism shown in Figures 3 and 4 except that aflexible shaft 82, similar to the shaft 16, is employed for rocking thecrank fingers 58 of the operating mechanism.

In conjunction with the various mechanisms described for clamping thesections together and as shown in detail in Figures 3 and 4, it will benoted that the twisted ends 55 of all of the bell crank levers areengaged by flexible elements 83, this type of operating element for thesets of bell crank levers 54 being provided regardless of the contoursof the particular section joints. These flexible elements, as shown inFigures 3, 8 and 9, project through openings in the casing sections 29(or 15 or and terminate in manually engageable ends 85, which may be inthe form of knobs, arranged in recesses 66 formed in the associatedcasing sections. The flexible elements 83 may project through openings81 in the recesses 86 and the latter, as shown in Figure 3, may beprovided with sheet metal guides 88 to facilitate the turning of theflexible element around the angles necessary for them to project throughthe respective openings 81.

From the foregoing it will be apparent that the operating mechanism foreach longitudinal and transverse joint is the same with respect to allof the sections except that flexible shafts are employed where necessaryto rock the crank fingers 50. It will be apparent that the operatingmechanism includes all of the elements shown in Figures 3 and 4, forexample the bolts 36, the argengement of the compressible packingelements etc.

The boat may be made in the form shown in Figures .1 and 2, and thecompleteboat may be furnished with an alternative stern section 95 asshown in Figure 10... This section may have an upstanding transom board96 to which an outboard motor can be rigidly connected, and the section95. will carry one of the compressible packing members 26. The sternsection 95 also will house the elements arranged within the lefthandcasing. section 29 of Figure 4 so that'the adjacent boat section 1-3 maybe connected thereto in the-same manner as would be true with the use ofone of the bow sections H,

. The-operation of the apparatus is as follows:

Various half-sections are brought together in proper relationship to theothersections in any desired sequence. Preferably the two halves of eachsection are first brought together, followed by the assembling of thesections with respect to each other; Referring'to Figure 4, the twohalfsections' represented in such figure are moved into proximity toeach other and the end of the bolt 36 is inserted in the socket 48. Theparts are moved manually toward each other with the handle m (Figure 4)swung downwardly and to the left until the crank finger 5E1 clears thebolt 36.

As the parts are moved together, the rounded advancing end of the bolt36 will move the lever arm 53 upwardly against the tension of the spring5|. Because of the packing member 26, the parts cannot be moved torelative positions in which the lever arm 53wi1l drop into the notch 52,it being necessary tocompress or deform the packing member as beforesuch operation can take place.

With the parts assembled to the position referred to, the handle H! isthen swung upwardly, rotating in a clockwise direction relative to theshaft 48 as viewed in Figure 4. The crank finger 50=of each latchingdevice of the two half-sectionsbeing assembled will engage the squareend of the associated notch 5|, thus applying force to each bolt 36 tomove the two half-sections l4 relatively toward each other. Theoperation referred to transmits positive movement from each bolt 38through its shank 38'to the nut.39, and the latter element transmitsresilient force through spring 40 to the head 31. The spring 40 isrelatively stiff and is capable of transmitting suflicient force totheright hand half-section M in Figure 4 to deform the packing member 26to the. extent necessary to permit the. bolt .35 to move to its properposition with the:notch 52 in alignment with the lever arm 53;. Thislever armwill then drop into the notch 52 and the parts will be lockedtogether.

The-deforming of the packing element-26 takes place With the taperededge of such element moving along the tapered top and bottomgsurfaces ofthe recess 24. prevent any'leakage around the packing member.

Each, successive pair of half-sections is assembled in the same manner,whereupon successive pairs of whole sections are brought into properrelationship with each other. The operation of assembling such completesections is identical with the operation previously described and neednot be referred to in detail. Referring to Figure 6, it will be obviousthat each complete section is provided with the same projectingboltsflfi receivable in the sockets or cylinders of the adjacent end ofthe next adjacent boat seciion. After the complete sections havebeen'moved together as far as possible by hand in' the manner pre- Thusa tightseal is provided. to

6 viously described, the handle 16 associatedwith one of the completesections (see Figure 6) is then operated to force the sections into theproper cooperative relation for engagement of the lever arm 53 (Figure8) with the notches 52 (of the bolts 36).

As stated, there is no distinction in the modes of operation involved inbringing the various sections together. The only diii'erence isstructural, flexible shafts (16 in Figure 8 and 82 in Figure 9) beingemployed for rocking the crank fingers 50 where straight rigid shaftscannot be employed. After all of the parts have been as sembled, a rigidunitary structure i provided and the boat may be freely used withoutdanger of the disengagement of the parts and without any leakage betweenthe various sections.

When the parts are to be disassembled, the knobs associated with thevarious fiexibleelements- 83 are pulled to release the lever arms 53from the notches 52. It will be apparent that due to the pressure of oneside of each notch 52 against its associated lever arm 53, there will bevery substantial frictional resistance to the dis engagement of thelever arms 53.

In disconnecting the parts, therefore, the opera-tor will first move thehandle 70 (Figure 3) of the two sections o half-sections to be disengaged, to rotate the associated crank fingers 50 to a slight extent in aclockwise dire'ction as viewed in Figure 4. This action will relieve thepressure against the associated lever arms 53. While holding the handle10 in the position referred'to, the operator can then readily pull theknob 85. This operation will transmit movement through the flexibleelement 83 to rock the bell crank levers 54 associated therewith (Figure3) to disengage the lever arms 53. While holding the flexible element 83in such position, the operator will release the handle 70, whereuponthe'spring 40 (Figure l) will move the associated bolt 35 to a positionin which the corresponding lever arm 53 Will be out of alignment withthe notch 52. The knob 85 will then be released, whereupon the two boatsections can be pulled apart. This operation is repeated until the boatis completely disassembled.

It will be apparent that the separated boat sections may be relativelyeasily stored and hosted for transportation. For example, for storageand transportation each half-section. Hl may be reversed and nesLedwithin the opposite half-section, and this operation may be repeated asto the various sections of the boat to minimize the storage andtransportation space required.

Where an outboard motor is to be used with the boat, the stern sectionshown in l ig-ure 10 will be substituled for one of the bow sections H.The stern section in Figure 10 corresponds to the bow section shown inFigure 6, having the openings and sockets for the reception of the bolts36 of the next adjacent boat section.

The pontoons l 'i (Figures 1 and 2) are preferably employed to addstability and buoyancy to the boat, particularly when it is used inrough water. These pontoons may be of any desired internal structure toprovide the necessary buoyancy and are readily attached to anddiscormected from the sides of the boat.

I claim:

1.. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a bolt carried by onesection and projecting from the edge thereof, a socket carried by theother section to receive said bolt,

a manually operable crank element carried by said other section andengageable with said bolt to move said edges into engagement with eachother, and means carried by said other section for engaging said bolttolock said sections in edge to edge relation.

2. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by one of said sections, a plurality of sockets carried by theother section to receive the respective bolts, latch means carried bysaid other section and engageable with each of said bolts to lock saidedges in contacting relation, and common means for operating all of saidlatch means.

3. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by one of said sections, a plurality of sockets carried by theother section to receive the respective bolts, latch means carried bysaid other section and engageable with each of said bolts to lock saidedges in contacting relation, common means for operating all of saidlatch means, and deformable packing means arranged between said edgesand extending from end to end thereof, said packing means being deformedunder pressure when said latch means engage said bolts.

4. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by one of said sections, a plurality of sockets carried by theother section to receive the respective bolts, latch means carried bysaid other section and engageable with each of said bolts to lock saidedges in contacting relation, common means for operating all of saidlatch means, deformable packing means arranged between said edges andextending from end to end thereof, and means for moving said'edges intocontacting relation and for deforming said packing means, said latchmeans being engageable with said bolts after operation of said lastnamed means to hold said packing means under pressure.

5. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by one of said sections, a plurality of sockets carried by theother section to receive the respective bolts, a plurality of leverscarried by said other section and each having a lever arm, each bolthaving a notch engageable with its associated lever arm, means biasingeach lever arm into engagement with its notch, and common means foroperating said levers to'release said lever arms from said notches.

6. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by one of said sections, a plurality of sockets carried by theother section to receive the respective bolts, a plurality of leverscarried by said other section and each having a lever arm, each bolthaving a notch engageable with its associated lever arm, means biasingsaid lever arm into engagement with its notch, common means foroperating said levers to release said lever arms from said notches, anddeformable packing means arranged between said edges and extendingthroughout the length thereof, said packing means being held undercompression when said lever arms are engaged in said notches.

'7. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by one of said sections, a plurality of sockets carried by theother section to receive the respective bolts, a plurality of leverscarried by said other section and each having a lever arm, each bolthaving a notch engageable with its associated lever arm, means biasingeach lever arm into engagement with its notch, common means foroperating said levers to release said lever arms from said notches, adeformable packing strip arranged between said edges and extendingthroughout the length thereof, and means engaging each of said bolts toeffect movement of said edges into engagement with each other and todeform said packing strip, said lever arms being engageable in saidnotches when said packing strip is deformed.

' 8. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by'one of said sections, a plurality of sockets carried by theother section to receive the respective bolts, latch means carried bysaid other sections and engageable with each of said bolts to lock saidedges in contacting relation, common means for operating all of saidlatch means, a deformable packing strip arranged between said edges andengageable with both such edges prior to contact therebetween wherebydeforming of said packing strip is necessary to bring said edges intocontacting relationship, a crank arm engageable with each bolt, and amanually operable shaft carrying said cranks and rotatable to effectmovement of said bolts to bring said edges into contact with each other,said lever arms being engageable in said notches only when said edgesare brought into contact with each other.

9. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relationship, a plurality of boltscarried by one of said sections and projecting from its said edge, aplurality of sockets carried by the other section to receive therespective bolts, a plurality of bell crank levers carried by said othersection, each bolt having a notch and each lever having a lever armengageable in one of said notches when said edges are in contactingrelation to lock said sections together with said edges in contact witheach other, and a flexible element connected to the other arms of saidbell crank levers to rock them and disengage said first named arms fromsaid notches.

v10. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relationship, a plurality of boltscarried by one of said sections and projecting from its said edge, aplurality of sockets carried by the other section to receive therespective bolts, a plurality of bell crank levers carried by said othersection, each bolt having a notch and each lever having a lever armengageable in one of said notches when said edges are in contactingrelation to lock said sections together with said edges in contact witheach other, a flexible element connected to the other arms of said bellcrank levers to rock them and disengage said first named arms from saidnotches, and a deformable packing strip arranged between said edges, andextending throughout the length thereof, said packing strip being suchthat deforming thereof is necessary to bring said edges into contactingrelationship.

11. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relationship, a plurality of boltscarried by one of said sections and projecting from its said edge, aplurality of sockets carried by the other section to receive therespective bolts, a plurality of bell crank levers carried by said othersection, each bolt having a notch and each lever having a lever armengageable in one of said notches when said edges are in contactingrelation to lock said sections together with said edges in contact witheach other, a flexible element connected to the other arms of said bellcrank levers to rock them and disengage said first named arms from saidnotches, a deformable packing strip arranged between said edges andextending throughout the length thereof, said packing strip being suchthat deforming thereof is necessary to bring said edges into contactingrelationship, and means for exerting a relative force between saidsections to bring said edges into contact with each other and to deformsaid packing strip.

12. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relationship, a plurality of boltscarried by one of said sections and projecting from its said edge, aplurality of sockets carried by the other section to receive therespective bolts, a plurality of bell crank levers carried by said othersection, each bolt having a notch and each lever having a lever armengageable in one of said notches when said edges are in contactingrelation to lock said sections together with said edges in contact witheach other, a flexible element connected to the other arms of said bellcrank levers to rock them and disengage said first named arms from saidnotches, a deformable packing strip arranged between said edges andextending throughout the length thereof, said packing strip being suchthat deforming thereof is necessary to bring said edges into contactingrelationship, a crank finger engageable with each bolt, a shaft carryingsaid crank fingers, and a handle connected to said shaft and operablefor swinging said crank fingers in one direction to effect movement ofsaid bolt and consequently relative movement of said sections to bringsaid edges into contacting relationship.

13. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by one of said sections and projecting from said edge of suchsection, spring means interposed between each bolt and said one sectionto tend to oppose movement of each bolt in the direction of itsprojection, a plurality of sockets carried by the other section toreceive the respective bolts, each bolt having a notch therein, andlatch means carried by said other section and engageable in said notchesto lock said sections with said edges in contacting relation.

14. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a plurality of boltscarried by one of said sections and projecting from said edge of suchsection, spring means interposed between each bolt and said one sectionto tend to oppose movement of each bolt in the direction of itsprojection, a plurality of sockets carried by the other section toreceive the respective bolts, each bolt having a notch therein, latchmeans carried by said other section and engageable in said notches tolock said sections with said edges in contacting relation, anddeformable packing means arranged between said edges and extending fromend to end thereof, said packing means being deformedand said springmeans being deflected from normal when said latch means are inengagement with said notches.

15. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a securing membercarried by one section and projecting from the edge thereof, manuallyoperable means carried by-the other section and engaging said securingmember for effecting clamping engagement of said sections toward eachother, and means carried by the other of said sections for engaging theprojecting end of said securing member to fix said sections relative toeach other.

16. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a securing membercarried by one section and projecting from the edge thereof, manuallyoperable means carried by the other section comprising a crank engagingsaid securing member for effecting clamping movement of the edges ofsaid sections toward each other, and means separate from said manuallyoperable means for engaging the projecting end of said securing memberto lock said sections in edge to edge relation.

17. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a securing membercarried by one section and projecting from the edge thereof, the otherof said sections having a socket to receive the projecting end of saidsecuring member, manually operable means connected between said securingmember and said other section for effecting clamping movement of saidedges of said sections into engagement with each other, and meansseparate from said manually operable means and carried by said othersection for engaging the projecting end of said securing member to locksaid sections in edge to edge relation.

18. In a boat structure, a pair of separable sections having edgesadapted to be brought into contacting relation, a securing membercarried by one section and projecting from the edge thereof, the otherof said sections having a socket to receive the projecting end of saidsecuring member, manually operable means connected between said securingmember and said other section for effecting clamping movement of saidedges of said sections into engagement with each other, the projectingend of said securing member being laterally notched, and means carriedby said other section and movable laterally relative to said securingmember to engage said notch and lock said sections in edge to edgerelation.

JOE H. JENKINS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,084,975 Steiner Jan. 20, 19141,180,967 Billing Apr. 25, 1916 2,292,972 Rice Aug. 11, 1942 FOREIGNPATENTS Number Country Date 436,247 France Jan. 18, 1912 695,493 FranceSept. 30, 1930

